We look at the division of 8123581 by 386 
We want to divide 8123581 by 386.

Advancing to step 1:
If we divide 8 by 386, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 386

Step 2:
The number 386 fits into 81 0 times, leaving a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Fetch the next digit (2) from the dividend, attach it to 81 and continue: 812 / 386

Moving on to step 3:
812 divided by 386 is 2 with a remainder of 40.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 772 from 812 leaves us with 40.
Append the next digit (3) from the dividend to 40 and continue with: 403 / 386

Going ahead to step 4:
386 goes into 403 1 times with a remainder of 17.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
If we subtract 386 from 403, we get 17.
Bring next digit (5) of the dividend behind the 17 and repeat the process: 175 / 386

Advancing to step 5:
386 goes into 175 0 times with a remainder of 175.
Record the quotient 0 as the next digit in the result. 
Result so far: 210.0
If we subtract 0 from 175, we get 175.
Bring next digit (8) of the dividend behind the 175 and repeat the process: 1758 / 386

Let's proceed to step 6:
1758 divided by 386 is 4 with a remainder of 214.
Write down 4 as next digit of the result. 
Result so far: 2104.0
Deduct 1544 from 1758 and we're left with 214.
Bring next digit (1) of the dividend behind the 214 and repeat the process: 2141 / 386

On to step 7:
386 can be fit into 2141 5 times, resulting in a remainder of 211.
Write down 5 as next digit of the result. 
Result so far: 21045.0
Deduct 1930 from 2141 and we're left with 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

Going ahead to step 8:
386 can be fit into 2110 5 times, resulting in a remainder of 180.
The next digit of our result is 5. 
Result so far: 21045.5
Subtracting 1930 from 2110 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Advancing to step 9:
386 goes into 1800 4 times with a remainder of 256.
Record the quotient 4 as the next digit in the result. 
Result so far: 21045.54
The remainder is 256 after subtracting 1544 from 1800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

On to step 10:
When dividing 2560 by 386, we get 6 with a remainder of 244.
Record the quotient 6 as the next digit in the result. 
Result so far: 21045.546
If we subtract 2316 from 2560, we get 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Going ahead to step 11:
386 can be fit into 2440 6 times, resulting in a remainder of 124.
Put 6 as the next digit of the answer. 
Result so far: 21045.5466
The remainder is 124 after subtracting 2316 from 2440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

In conclusion, the division gives 21045.5466 with a balance of 0.00124.